Your best assurance of not having loaded dice is to bring your own, and do
frequent dice changes and mixes. You should also insist on precision dice
regardless, which are easily identified as each face is a perfect circle,
the corners are beveled, and the pips are inlaid plastic, not indented
holes that are painted. The best ones are translucent, which is also a
anti-cheating feature. If you are SERIOUSLY worried that you are being
cheated by someone you play against, it is probably better to find a new
opponent.
--
Gregg Cattanach
Zox_ at GamesGrid, Zone
http://gateway.to/backgammon